AP – Ten minutes of brisk exercise triggers metabolic changes that last at least an hour. The unfair news for panting newbies: The more fit you are, the more benefits you just might be getting.

At one time, the term “nervous breakdown,” a catch-all for all kinds of symptoms, pretty much disappeared. But it may be hard to improve upon.

In the case of a 13-month-old boy who died, battery current set off a chemical reaction in the esophagus, burning through its wall and attacking the aorta.

Finding objective evidence, or a biological marker, for attention deficit hyperactivity disorder could cut the guesswork in diagnoses.

For feeling content, 18 doesn’t hold a candle to 85, a nationwide poll has found. Researchers aren’t sure why.